RT Journal Article
T1 Some exact results in preheating from the Lamé equation
A1 Finkel Morgenstern, Federico
A1 González López, Artemio
A1 López Maroto, Antonio
A1 Rodríguez, M.A.
AB The most general inflaton potential in Minkowski spacetime for which the differential equation for the Fourier modes of the matter fields reduces to Lame's equation is shown to be of the form V(ф) = λ ф ^(4) /4 + K ф^( )2 /2 + μ/(2 ф^( 2) ) + V_(0). As an application, we study the preheating phase after inflation with K = 0 and arbitrary λ, μ > 0. For certain values of the coupling constant between the inflaton and the matter fields, we show how the instability intervals, the characteristic exponents, and the particle production can be computed in closed form.
PB American Institute of Physics
SN 0094-243x
YR 2001
FD 2001
LK https://hdl.handle.net/20.500.14352/60141
UL https://hdl.handle.net/20.500.14352/60141
LA eng
NO © 2001 American Institute of Physics. International Conference on Cosmology and Particle Physics (CAPP 2000) (2000. Verbier, Switzerland).
DS Docta Complutense
RD 7 abr 2025